Apparatus for winding coil condensers



Dec. 26, 1933. H. 1. DANZIGER 1,940,347

' APPARATUS FOR WINDING COIL CONDENSERS Filed May 10. 1926 3 Sheets-Sheet l INVENTOR WWW ATT

Dec. 26, 1933. H. l. DANZIGER 1,940,847

APPARATUS FOR WINDING COIL CONDENSERS Filed May 10, 1926 3 Sheets-Sheet 2 I Dec. 26, 1933 H. I. DANZIGER APPARATUS FOR WINDING COIL CONDENSERS Filed llay 10, 1926 3 Sheets-Sheet 3 INVENTOR W ATTRNEY i fatented Dec, 2%, W33

APFARATUS FOR WINDING COIL CONDENSERS Harold I. Danziger, New York, N. Z.

Application May 10, 1926. Serial No.

24 Claim.

This invention relates to automatic machines 'Zor winding coil condensers and has for its main obiect to provide a construction-which will be comparatively simple and yet emoient to produce condensers sufliciently compact and solid to withstand considerable mechanical stress and which will have a maximum electrostatic capacity.

Another object of this invention is to provide an apparatus ior doing the work of winding the condensers and performing automatically all operations which hitherto have been done by hand, whereby a considerably larger output is insured and the cost of manufacture of the condensers is reduced to a minimum.

To accomplish these objects my apparatus com" prises substantially a mandrel, a plurality of rotatable reel supports from which bands of dielectric and foil are adapted to unwind in a downwardly converging manner toward said mandrel, automatically controlled means for retaining the tension of the unwindhig bands, means for holding said bands separated during their entire unwound length, automatically controlled rotary cutters, automatically controlled feed rollers, whereby the tension of the bands will be increased during the mechanisms showing the same the front plate stantially along the cutting operation and reduced during the winding operation, means for automatically controlling the length of the bands to be wound around the mandrel, and means for automatically stopping the apparatus in case the dielectric or foil bands break or give out. w

My invention also consists in the novel construction, arrangementand combination of parts as will be hereinafter described and defined in the appended claims.

In the accompanying drawings which form part of this specification and in which similar reference characters denote corresponding parts,

Fig. l is'a front elevation of my improved apparatus;

Fig. 2 is an inner of the frame removed; fragmentary end view taken subllne 2A-2A of Fig. 2;

Fig. 3 is'a section on the line 3--3 of Fig. 2 seen in the direction of the arrows;

Fig. 4 is a section on the line 4-4 of Fig. 2 seen in the direction of the arrows;

Fig. 5 is a. side view of the cams ris.

Fig. 6 is a detail Fi8.2Aisa shown in view of one of the cutting I in operation; and Fig. Us a detail of a feed roller.

The machine comprises a frame composed of rotatable split or sectional view of the apparatus with two upstanding parallel plates, 9. front plate 10 and a rear plate 11 spaced apart and suitably joined together. main motor by means of pulley land Supported on the frame is the 12 from which is suitably driven as belt 15 a shaft 13 which extends transversely through the frame at the lower part of the latter. projects forwardly from constitutes other end of the shaft 13 through a train of gears worm 20, which meshes mounted on a to and below the shaft between the two plates 10 Rotatively supported on the outside of the plate three pairs of drums or the 10 of the frame are the mandrel of the condenser.

One end of said shaft the front plate 10 and The carries a gear 16 which l7, l8 and 19 drives a with a worm gear 21 shaft 41 extending at a right angle 13 through the space and 11. i0

like 23, 23, 24, 24 and 25, 25 adapted to carry the stock of paper or dielectric and foil.

The drums of each pair are arranged equi-distantly from the central vertical line ofthe frame and the three pairs are arranged in a vertical superposed order.

The uppermost drums 23, 23 and drums 25, 25 are adapted while the intermediate drums the lowermost to carry the paper stock 24, 24 are adapted w to carry the foil stock. It will be noted that the drums carrying the foil stock are arranged closer to the central vertical line than those carrying the paper stock and strips or hands of papers, layers and the strips or as the outer between the latter. The

P, 9 serve as the inner bands of papers p layers for the strips or hands of foil I All these strips are adapted to pass from the top of their respective drums and to converge downwardly toward the central vertical line and toward the mandrel on which strips 3), 12 are guided 1', r, and the paper strips p, p",

be wound. The paper over guide rollers the condenser is to are guided over guide rollers r, 1'. The strips of foil 1, f, are guided over with which cooperate feed rollers 26 spectively and 2'1 A pair of main serve to feed all strips,

guide rollers 26, 27, re-

feed rollers 28 and 28 brought together at the lower part of the apparatus a short distance from the mandrel, onto the latter. 1 To but off the foil and the paper after a certain number of windings thereof around the mandrel 13, I provide suitable rotary cutters 3'7, one cutter for each strip of the paper strips. Plates foil, and a pair of cutters 3 8 for 39 and 40, fixed to the frame and extending parallel to the outer faces of the different strips, serve as rests for the latter during the cutting operations.

In order that the foil layers may be completely enveloped between the layers of dielectric, s

o as to prevent contact no that the foil strips will be cut oil in advance of the '74, 75 and 76, 77 respectively pivoted to the frame paper or dielectric strips. The cutters or knives as at 78. One of the pair of arms 74, 75 is con are adapted to be driven from the spindle 41 by nected by a link 79 to a lever 80, which is pivoted the following mechanism. at one end 81 to the frame, and at the other end Mounted on the spindle 41 in parallelism and to one of the slides 63. This lever is also conthe cam 42. The latter cam has secured to its and 83 will cause the slides 6 3 of the feed rollers $35 cams 42, 43, can be adjusted relative to one anand at the opposite end 87 to the slide 63 of the @ill paper strips. Each of these cams operates a horirollers 26 27 feeding the foil will be operated 2o son cally extending bar 4? pivoted to the frame at in advance of the feed roller 28 to correspond 95 2s slowly drives the spindles 37 of the rotary knives of ars (n h wn hr u h the medium of l 39' of gears 58, 59, 60 and 61 slowly drives the spindles Fig. 7, whereby the rotary motion of said roller 105 predetermined relative times the springs 62 be- Fi ure 7, and as long as it moves faster than the 110 all s to rotate suddenly in the directions 01' the at any time, for in such an event, the halls lid i115 atrows of Figure 1 to cut the respective strips. are f ly rotatable without Upon further rotation of the cams 42 and 43 the The apparatus hereinbefore described has been (i9 and 5d are again slowly raised as before, found to be v y effective producing condensers therehy tensioning the springs 62 into readiness o 8- h h degree o s id y n min mum time. 45 tor the next cutting operations. It is, 01' course, understood that my apparatus 126 The feed rollers 26 27 and 28 are made admay be modified in various ways without depart= tension on thestrips may be increased during the described and shown herein For example, it cutting operation and reduced during the windwill be understood that the terms foil" and 125 ing operation. To this end these feed rollers fpaper", as the sameare used herein and in the struction. Each adjustable bearing consists 01 dies. mg

a slide 63 bornein a block 64 suitably fixed to the What I claim is: frame. The slide is actuated at predetermined 1. In a condenser winding machine, a supply of times by a comparatively heavy spring 65 which H paper, a supply of metallic foil, a rotatable arbor tends to suddenly move and hold the slidein such on which the paper and foil are adapted to he 60 position that the roller journaled therein will be wound, means for severing the foil and paper, 1 in strong frictional contact with the correspondmeans driven in timed relationship with the V tween the same. Each slide 63 is normally resevering means to sever the toil prior to the 5 tained away from the corresponding one of the severance of the paper.

39 of cams 66, 67, each of which cooperates with a adjustable means driven in timed relation with 145 at 71 and at the opposite end is connected to a erance '01 the paper. 75 bar 72, 73, respectively, suitably guided in verti- 3. In a condenser winding machine, a supply 3 -said arbor,

of paper, a supply of foil, a rotatable arbor on which the paper and foil are adapted to be wound, cutters for the foil and paper, mechanism driven in timed relation with the arbor for controlling the operation of said cutters to sever the foil prior to the severance of the paper, and means for adjusting said mechanism so as to vary the amount of such priority of severance.

4. In apparatus for winding coil condensers of alternate layers of foil and dielectric, cutters in the path of said layers adapted to cut the latter after predetermined lengths thereof have been wound, means for transmitting motion to said cutters, a pair of driven cams controlling the operation of said cutters and means for adjusting said cams relative to one another to vary the relative lengths of the strips to be wound.

5. In apparatus for winding coil condensers of alternate strips of foil and dielectric, cutters in the path of said strips adapted to cut the latter after predetermined-lengths thereof have been wound, a driven sp dle, means for transmitting motion to said cutters including cams of which one is fixed on said driven spindle and the other adjustable thereon, a ,toothed sector in one of said cams and a pinion in the other cam meshing with said sector and serving for the adjustment of said cams relative tb one another to vary the length of the strips to be wound.

6. In a winding machine for a coiled condenser body, a rotatable arbor, reels for a supply of conductive and non-conductive strips, means for winding said strips in alternate superposition onto means automatically operative before the completion of the winding operation to sever the strips after differing lengths thereof have been wound, and means-for automatically advancing the new ends resulting from said severance, at a retarded rate, from said reels toward said arbor so as to position them in-readiness for the subsequent winding of another condenser body.-

7. An apparatus for winding coil condensers of alternate strips of dielectric and foil, comprising a rotary condenser support upon which said strips are adapted to be wound, cutters adapted to out said strips after predetermined lengths have been wound and so timed that the strips of foil will be cut of! in advance of the dielectric strips, and means operable in timed relation to said cutters for momentarily varying the tensions on said strips during respective cutting operations.

8. An apparatus for winding coil condensers of alternate strips of dielectric and foil, comprising a rotary condenser support upon which said strips are adapted to be wound, cutters so timed as to cut off the strips of foil in advance of the dielectric strips and after predetermined lengths thereof have been wound, and means operable in timed relation to said cutters for increasing the the cutting opera during the normal tension on said strips during tion and decreasing the same winding operation.

9. In apparatus for winding a continuous strip upon a mandrel, means for exerting a continuous pull upon the strip in the direction of the mandrel, means for cutting said strip during the winding thereof after a predetermined length thereof has been wound, and means operable in timed relation to the cutting means for momentarily increasing the tension of the strip.

10. In apparatus for winding a continuous strip upon a mandrel/means for exerting a continuous pull upon the strip in the direction of the man-' drel, means for cutting said strip during the retard the strip at a a cutting device in advance of said rollers,

winding thereof after a predetermined length thereof has operable in timedrelation to the cutting means for momentarily increasing the tension of the strip said last named means comprising a gripping device adapted to frictionally engage the strip and thereby retard it at a point behind the cutting point.

/ 11. In apparatus for winding a continuous strip upon a mandrel, means for exerting a continuous pull upon the strip in the direction of the mandrel, means for cutting said strip during the winding thereof after a predetermined length thereof has timed relation to the cutting means for momentarily increasing the tension of the strip, said last named means comprising a pair of relatively movable and normally spaced friction rollers positioned behind the cutting point and on opposite sides of the strip, whereby movement of the rollers to engage the strip therebetween will counteract the pulling means and thereby create said tension. I 12. In apparatus for winding a continuous strip upon a mandrel, means for rotating the mandrel to exert a continuous pull upon the strip being wound, a normally inoperative cutting device positioned to operate upon the strip during the winding thereof so as to sever the strip after a predetermined length thereof has been wound. means for rendering said cutting device operative at a predetermined time, and means operable in timed relation to the cutting devices operation for momentarily increasing the tension of the strip portion which includes the cutting point during the cutting operation, said last named means comprising a device adapted to engage and point behind the cutting device.

rollers for said strips, adjustable bearings carrying said rollers, a second set of rollers cooperating respectively with said first named rollers, driving means, and cam controlled means impelled from said driving means for adjusting said hearings to either increase the pressure between respective rollers or decrease the same.

14. In a winding device for a plurality of superposed strips comprising alternate foil and dielectric material, a receiving mandrel, .means for rotating the mandrel to wind the strips thereon, a pair of normally inoperative rollers between which all strips pass in approaching the mandrel, pairs of normally inoperative rollers between which only the foil strips pass in approaching the first mentioned pair, a cutting device in advance of each of said foil rollers, means for rendering said rollers operative at predetermined relative times'fori engaging the strips between them and thus increasing the tension of the engaged strips in advance of the operative rollers, and means for rendering'gthe cutting devices operative in timed relation to the tensioning.

15. In a winding device for a plurality of superposed strips comprising alternate strips of foil and dielectric material, a receiving mandrel, means for rotating the mandrel to wind the strips thereon, a pair of normally inoperative rollers between which all strips pass in approaching the mandrel, a cutting device in advance of said rollers, pairs of normally inoperative rollers between which only the foil strips pass in approaching the first mentioned pair, a cutting device in advance of each 01' said foil rollers, means 20. In a winding device for a plurality of superfo endering said rollers operative at predeterposed strips, a driving receiving mandrei'i'or the tween them thus increasing the tension of the pairs between which selected strips-r groups 01 5 engaged strips in advance of the operative rollstrips may be made to pass in approaching the 5 means being operative to tension and cut the gaging the strip or strips between them and thus strips in such a manner that the foil strips wound increasing the tension of the engaged strip or upon the mandrel will be of shorter length than strips in advance or the operative pairs. a nora the dielectric strips. mally inoperative cutting device in advance of upon the strips in the direction of the mandrel. 21. In a winding device for a plurality o1 superm ns for u n a n of Said strips after posed strips, a driving receiving mandrel for 20 strips have been wound, said cutting me ns mpair comprising relatively movable rollers which prising a series of cutting devices positioned rear nor ally spaced t per t free passage ti 25 means operable in timed relation to the cutting increase the tension, at" prede ermined times, 01 devices for momentarily increasing the tension th en aged strip or strip in adv nc 0 .6301! cutting devices during the cutting operations. 22,1 a winding n plumntyofsuper- 17. In apparatus for winding coil condensers pos d t 3 a d l for e ivi th strips 36 of continuous strips of alternately superposed thereon, means for dnving-the-mgndrel, 313311- strips of dielectric and mi], a rotatable mandrel 01' normall moperativemllerg which 311 for receiving the strips, means for rotating the strips p333 1n appmachjng th ma d l, pan- 0f mandrel to. exert a continuous pull upo th normally inoperative rollers between which only atively positioned with respect to the dielectric. pperat ve 1; r t rmi ed r hti ti for no the strips, a plurality of no mally inoperative a plurality 01' pairs of reels for toll and dielec 50 roller pairs between which selected strips or tric stock, said pairs being arranged in verti- 1 60 pairs between which selected strips or groups of dielectric strips and automatically controlled 65 thus increasing the tension of the engaged strip HAROLD I. DANZIGER.

D l 8 CLAIM-E Ft 1 940,'847.-Harold I. Dan cry-New York, -N.-'Y. Arransrnaronjwn znmg 0011 'OONDENBERS. Pa t gnt dated Deo.-2 6; 1933.- 1D iscla1mer"fi1ed May 8,1945;

bythe assignee; C ndenser Oorpafia'twn of America. I V J I Hereby enters this disclaimer to claims l il, and 3 insaidspecification;

[@fiiczhl Gazette June '5, 1945.] 7 

